The probability of getting exactly three tails when three balanced coins are tossed once _______________?
Correct answer: A. 1/8
- A. 1/8
- B. 2/8
- C. 5/8
- D. 7/8
Explanation
Only one outcome, tails-tails-tails, gives exactly three tails. With three fair coins there are 2^3 = 8 equally likely outcomes, so the probability is 1/8.
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